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Among the valves, ball valves are the most widely used. Ball valves have the action of rotating 90 degrees. The plug body is a sphere with a circular through hole or channel passing through its axis. The ball valve is mainly used in the pipeline to block, distribute and change the direction of movement of the medium. It only needs to be rotated by 90 degrees and can be closed tightly with a small rolling torque. Ball valves are most suitable for switching and blocking valves.
Ball valve can be divided into: carbon steel ball valve, stainless steel 304 ball valve, 316 ball valve and copper ball valve and cast iron ball valve. It is widely used in petroleum, chemical industry, power generation and other departments. It uses stainless steel as raw material. Stainless steel ball valve products have strong anti-corrosion characteristics, simple structure, and strict and reliable characteristics.
Seven advantages of ball valves
1, the fluid resistance is small, the resistance coefficient is equal to the pipe length of the same length;
2, simple structure, small size, and light weight;
3. It is tight and reliable. Now the sealing surface data of ball valves are widely used in plastics and have good sealing performance. They have also been widely used in vacuum systems;
4, convenient operation, quick opening and closing, only need to rotate 90 ° from fully open to fully closed, which is convenient for long-distance control;
5. Convenient to repair, the structure of the ball valve is simple, the seal ring is usually movable, and it is relatively convenient to disassemble and replace;
6. When fully open or fully closed, the sealing surfaces of the sphere and valve seat are isolated from the medium, and the medium will not cause erosion of the valve sealing surface after the period of time;
7. The ball valve has a wide range of applications, from small diameters to a few millimeters, up to 1.2 meters, and can be applied from high vacuum to high pressure.
These seven advantages of the ball valve make it the most widely used valve in the profession.